A radioactive nuclide that is used for geological dating has an atomic number of 19 and mass number 40. which is the symbol of this nuclide?

Since particles in a solid are arranged close together in a regular pattern, some can be classified as i think magma not 100% sure A. gradients. B. crystals. C. plasma. D. magma.

The energy of the color light increases in order of red yellow green blue and violet list of metal ions in increasing order of energy of light emitted

6PbO + O2 → 2Pb304 a. How many grams of Pb304 are produced from 8.50 grams of lead (II) oxide?

The mass ratio of F to Cr in CrF3 is 1.096 : 1. In a 36.63 g of CrF3, how many grams are Cr?

If a molecule contains two carbon atoms and four hydrogen atoms, what can you conclude about the bond between the carbon atoms? ... ?

What is linen composed of

Which of the following elements has the lowest electronegativity? A) Xe B) Rb C) I D) Cl

An oxidation-reduction reaction is also known as a redox reaction. What is one way you could tell that a redox reaction has occurred? a. when one substance transfers electrons to another. b. when a substance reacts with oxygen. c.

How many atoms are there in 2.59 mol of carbon monoxide (CO) ?

What is 5.06 grams of oxygen in atoms